<http://schema.org/target>
"http://www.audible.com/search?advsearchKeywords={search_term_string}"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.audible.com/pd/Arts-Entertainment/Thalia-Book-Club-Emma-Donoghues-Room-Audiobook/B004QDRJ9C?ref_=cat_4>